“Economists have long argued that a rising wealth gap has complicated the U.S. rebound from the Great Recession.
Now, an analysis by the rating agency Standard & Poor’s lends its weight to the argument: The widening gap between the wealthiest Americans and everyone else has made the economy more prone to boom-bust cycles and slowed the 5-year-old recovery from the recession.
Economic disparities appear to be reaching extremes that “need to be watched because they’re damaging to growth,” said Beth Ann Bovino, chief U.S. economist at S&P.

The rising concentration of income among the top 1 percent of earners has contributed to S&P’s cutting its growth estimates for the economy. In part because of the disparity, it estimates that the economy will grow at a 2.5 percent annual pace in the next decade, down from a forecast five years ago of a 2.8 percent rate.
The S&P report advises against using the tax code to try to narrow the gap. Instead, it suggests that greater access to education would help ease wealth disparities….”